CN111876585A - Sound wave reduction homogenization regulation and control device and method in welding residual stress generation process - Google Patents
Sound wave reduction homogenization regulation and control device and method in welding residual stress generation process Download PDFInfo
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- CN111876585A CN111876585A CN202010745783.1A CN202010745783A CN111876585A CN 111876585 A CN111876585 A CN 111876585A CN 202010745783 A CN202010745783 A CN 202010745783A CN 111876585 A CN111876585 A CN 111876585A
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- 238000003466 welding Methods 0.000 title claims abstract description 141
- 238000000034 method Methods 0.000 title claims abstract description 48
- 230000008569 process Effects 0.000 title claims abstract description 37
- 238000000265 homogenisation Methods 0.000 title claims abstract description 18
- 230000009467 reduction Effects 0.000 title claims abstract description 18
- 230000001105 regulatory effect Effects 0.000 claims description 26
- 230000001276 controlling effect Effects 0.000 claims description 14
- 230000035882 stress Effects 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 7
- 239000010959 steel Substances 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 238000005204 segregation Methods 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000010953 base metal Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 230000005570 vertical transmission Effects 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D10/00—Modifying the physical properties by methods other than heat treatment or deformation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B3/00—Methods or apparatus specially adapted for transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/0207—Driving circuits
- B06B1/0223—Driving circuits for generating signals continuous in time
- B06B1/0238—Driving circuits for generating signals continuous in time of a single frequency, e.g. a sine-wave
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
- B06B1/0607—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements
- B06B1/0622—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements on one surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/10—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/003—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to controlling of welding distortion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0408—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work for planar work
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
- B06B2201/20—Application to multi-element transducer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
- B06B2201/70—Specific application
- B06B2201/72—Welding, joining, soldering
Abstract
A sound wave reduction homogenization regulation and control device for a welding residual stress generation process comprises: the fixing tool is provided with two rows of through holes; the ultrasonic transducers are provided with a body, and the lower end of the body is provided with a conical amplitude transformer transmitting part; the lower end of the transmitting part of the amplitude transformer is fixedly connected with a flange plate; the transmitting part of the amplitude transformer of each ultrasonic transducer extends into the through hole of each fixed tool to be in contact with the welding part below the fixed tool, the flange plate and the fixed tool are fixed through bolts, and the two rows of through holes are arranged just opposite to two sides of the welding seam of the welding part; and the driving device drives the ultrasonic transducer to work. Corresponding regulation and control methods are also provided. The invention can regulate and control the residual stress at the welding seam of the steel.
Description
Technical Field
The invention relates to the technical field of residual stress regulation, in particular to a sound wave reduction homogenization regulation and control device and a regulation and control method in a welding residual stress generation process.
Background
When two steel welding pieces are welded, particularly for thicker steel such as doors and windows, stress is generated at the welding seam of the two welded welding pieces after welding, so that the welding seam is a stress abrupt change part, and the two welded welding pieces are firmly welded in the future.
How to eliminate the residual stress at the welding seam in the welding process is a technical problem to be solved.
Disclosure of Invention
In view of the above, the main objective of the present invention is to provide a device and a method for regulating and controlling the sound wave reduction and homogenization in the process of generating welding residual stress, so as to reduce the residual stress at the weld joint of the steel material.
The invention provides a sound wave reduction homogenization regulation and control device in a welding residual stress generation process, which comprises:
the fixing tool is provided with two rows of through holes;
the ultrasonic transducers are provided with a body, and the lower end of the body is provided with a conical amplitude transformer transmitting part; the lower end of the transmitting part of the amplitude transformer is fixedly connected with a flange plate;
the transmitting part of the amplitude transformer of each ultrasonic transducer extends into the through hole of each fixed tool to be in contact with the welding part below the fixed tool, the flange plate and the fixed tool are fixed through bolts, and the two rows of through holes are arranged just opposite to two sides of the welding seam of the welding part;
and the driving device drives the ultrasonic transducer to work.
By designing the plurality of ultrasonic transducers and the amplitude transformer transmitting parts connected with the ultrasonic transducers, when steel is welded, the plurality of amplitude transformer transmitting parts are uniformly arranged at the two sides of the welding seam of the welding part, the front end surface of the transmitting part is in close contact with the welding part, continuous ultrasonic waves are continuously input in the welding process by regulating and controlling the plurality of ultrasonic transducers, so that the ultrasonic waves are radiated into a molten pool, the mechanical vibration of the ultrasonic waves is transmitted to the welding seam of the welding part in the process from the molten state of a welding toe to the solidification process, and a plastic deformation layer with enough depth is generated on the surface of the welding seam part, so that the appearance shape of the welding seam and a base metal transition area is effectively improved, the smooth transition is realized, the stress concentration degree of the welding part is reduced, the metal near the welding seam is strengthened, and the grain size is reduced by utilizing the ultrasonic waves, The method has the characteristics of uniformly distributing the solute, reducing segregation and the like, reducing the welding residual stress and improving the performance of a welding joint, thereby ensuring the firm welding of two welding parts.
Wherein the driving device includes: the residual stress regulating and controlling instrument comprises an industrial personal computer, an analog-digital signal card and a multi-channel controller which are in signal connection in sequence; the program-controlled power supplies are respectively in signal connection with the channels of the multi-channel controller; and the adaptor is used for outputting the electric signals of the plurality of programmable power supplies to the corresponding plurality of ultrasonic transducers.
By the above, different residual stress regulation and control modes can be selected according to different regulation and control requirements by designing the multi-channel controller and the plurality of program-controlled power supplies corresponding to the number of the ultrasonic transducers, so that each ultrasonic transducer is regulated and controlled in different modes.
Preferably, a sleeve is arranged between the amplitude transformer emission part and the flange plate, the amplitude transformer emission part is fixed with the sleeve through a bolt, and the sleeve is fixedly connected with the flange plate.
Wherein, a spring and/or a bolt for fixing the amplitude transformer transmitting part and the sleeve are sleeved on
And a spring is sleeved on the bolt for fixing the flange plate and the fixing tool.
By last, fix the luffing jib transmitting part on fixed frock through the structure of selection sleeve and ring flange, simultaneously, set up the spring on connecting luffing jib transmitting part and telescopic bolt, or set up the spring on the bolt of connecting flange dish and fixed frock, when spring length is fixed, each spring precompression volume is certain, the compressive force is certain, when compressing tightly the welding piece on fixed frock, weld the luffing jib transmitting part of pressure, lead to the ring flange compression spring on the luffing jib transmitting part, 6 or 8 springs keep unanimous elasticity, make luffing jib transmitting part and welding piece keep in close contact with.
And when the corresponding welding part is a curved surface, the end surface of the amplitude transformer transmitting part in contact with the welding part is a matched curved surface.
When the welding seam is a three-dimensional space intersecting line, the end face of the amplitude transformer transmitting part, which is in contact with the welding part, is a curved surface matched with the regular curved surface.
When the device is applied to surfacing welding and the regulation and control of the residual stress of an ultra-wide welding seam welding area, the transmitting part of the amplitude transformer is vertically attached to the surface of a welding part.
By above, in practical application, the terminal surface that becomes width of cloth pole emission portion and welding piece contact is confirmed according to the actual shape of welding seam, no matter the welding seam is curve or three-dimensional space intersecting line, the terminal surface that becomes width of cloth pole emission portion and welding piece contact all with the face of weld phase-match, and all adopt the mode of laminating perpendicularly to make width of cloth pole emission portion and welding piece surface contact to make ultrasonic wave vertical transmission to the welding piece, furthest's reduction welding residual stress.
The invention also provides a method for regulating and controlling the sound wave reduction and homogenization in the process of generating the welding residual stress, which comprises the following steps:
the sound wave reduction homogenization regulation and control device in the welding residual stress generation process is used, and two rows of amplitude transformer transmitting parts corresponding to the two rows of through holes are arranged in contact with two sides of a welding seam of a welding part;
and the contact position is far away from the welding heat affected zone by 10-15mm distance and is used as a residual stress regulation position in the welding process;
when welding, the sound wave reduction homogenization regulation and control device in the process of generating the welding residual stress works to regulate and control the residual stress in the welding process.
The method comprises the steps of uniformly arranging a plurality of amplitude transformer transmitting parts at two sides of a welding seam of a welding part, enabling the front end surface of the transmitting part to be in close contact with the welding part, enabling the contact position to be far away from a welding heat affected zone by a distance of 10-15mm, then regulating and controlling a plurality of ultrasonic transducers, continuously inputting continuous ultrasonic waves in the welding process, enabling the ultrasonic waves to be radiated into a molten pool, and utilizing the ultrasonic waves to reduce the grain size, enable solute to be uniformly distributed, reduce segregation and the like in the process from a toe melting state to a solidification process, reduce welding residual stress, improve the performance of a welding joint and further ensure the firm welding of two welding parts.
And detecting the residual stress before regulating and controlling the stress, and detecting the residual stress again after the regulation and control are finished.
Therefore, the residual stress is detected before the stress is regulated, the residual stress regulating instrument is regulated according to the detected residual stress, the ultrasonic transducer is driven to output proper central frequency, the residual stress in the welding process is regulated, the residual stress is detected again after the regulation is finished, and the regulation effect is ensured.
Drawings
FIG. 1 is a schematic structural diagram of a sound wave reduction homogenization control device in the welding residual stress generation process of the present invention;
FIG. 2 is a top view of a schematic structural diagram of the ultrasonic transducer assembled by the fixture;
FIG. 3 is a side view of a schematic structural view of the ultrasonic transducer assembled by the fixture;
fig. 4 is a cross-sectional view of an ultrasound transducer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more clear, the present application will be further described in detail with reference to the accompanying drawings.
The invention can be applied to the welding process of the thick plate steel structure, such as the welding process of steel doors and windows, and can regulate and control the residual stress and the deformation of a welding seam.
Fig. 1 shows a schematic structural diagram of the acoustic wave attenuation homogenization control device for the welding residual stress generation process of the application, which comprises:
the fixing tool 20 is provided with two rows of through holes;
2-3, respectively show a top view and a side view of a structural schematic diagram of the fixing tool for assembling the ultrasonic transducer, specifically, each ultrasonic transducer 10 has a body, and a horn emitting portion 11 with a conical shape at a lower end of the body; the lower end of the horn launching part 11 is provided with a sleeve 13 and a flange 12, and in the embodiment of the invention, the sleeve 13 and the flange 12 can be a flange sleeve of an integrated structure; the ultrasonic transducers 10 can be regulated and controlled in an array manner, so that a good residual stress regulation and control effect can be achieved under the condition of long welding seams. The ultrasonic transducer 10 is an ultrasonic wave generating device for converting an electric signal into an ultrasonic wave with the same frequency, and the amplitude transformer emitting part 11 is an acoustic wave amplitude amplifying device for amplifying the ultrasonic wave and transmitting the ultrasonic wave to a welding part contacted with the ultrasonic wave; the center frequency of the ultrasonic transducer 10 is generally 15-20 KHz, and can be selected according to specific conditions;
the amplitude transformer emitting part 11 of each ultrasonic transducer 10 extends into each through hole of the fixed tooling 20 to be in contact with a welding part below the fixed tooling 20, the amplitude transformer emitting part 11 and the sleeve 13 are fixed through bolts, the flange plate 12 and the fixed tooling 20 are fixed through bolts, and the two rows of through holes are arranged just opposite to two sides of a welding seam of the welding part;
as can be seen from the section (section a-a) of the ultrasonic transducer along the direction a-a and the bolt portion (partial view B) of the sleeve on the section in fig. 4, the lower portion of the threaded hole on the sleeve 13 is further provided with an unthreaded hole, when the bolt is screwed into the threaded hole, the bottom of the unthreaded hole is propped against, so that the screwing depth of the bolt is fixed to a uniform value, meanwhile, the bolt fixing the horn emitting portion 11 and the sleeve 13 is further sleeved with a spring, when the length of the spring is fixed, the pre-compression amount of each spring is fixed, the compression force is fixed, when the welding part is pressed on the tool, the welding part presses the horn emitting portion, so that the flange on the horn emitting portion compresses the spring, and 6 or 8 springs keep consistent elasticity, so that the horn emitting portion and the welding part are kept in tight contact. Besides, a spring can be sleeved on the bolts of the fixed flange plate 12 and the fixed tool 20, and the function of the spring is consistent with that of the bolts of the amplitude transformer launching part 11 and the sleeve 13.
In the invention, when all the ultrasonic transducers are distributed in an array, the amplitude transformer transmitting part is not well contacted with the welding part due to insufficient original surface flatness of the welding part or deformation of a member caused by welding stress and the like, so that each ultrasonic transducer is an independent pressing unit by adopting a spring device, and the amplitude transformer transmitting part is ensured to be tightly attached to the surface of the welding part all the time.
The ultrasonic transducer 10 is electrically connected to a driving device for driving the ultrasonic transducer 10 to operate.
Wherein the driving device includes: the residual stress regulating and controlling instrument 30 is sequentially in signal connection and comprises an industrial personal computer, an analog-digital signal card and a multi-channel controller which are sequentially in signal connection; a plurality of program-controlled power supplies 40 which are respectively in signal connection with each channel of the multi-channel controller and provide electric signals with different frequencies under the control of the industrial personal computer; the adaptor 50 is configured to output electrical signals of the plurality of programmable power supplies 40 to the corresponding plurality of ultrasonic transducers 10, excite the plurality of ultrasonic transducers 10 to convert electrical energy into mechanical vibration (ultrasonic wave) with the same frequency, and amplify the mechanical vibration by the horn transmitting portion 11 and transmit the amplified mechanical vibration to a contacted welding member. Through this drive arrangement, can select for use different residual stress regulation and control modes according to the regulation and control requirement of difference, for example vibration frequency's height, if decide frequency or frequency conversion etc..
Wherein, vertically placing the amplitude transformer on the surface of the regulating member and tightly attaching the transmitting end of the amplitude transformer to the surface of the regulating member, the shape of the transmitting end of the amplitude transformer can be matched with the surface of the regulating member, for example:
when the welding seam is a curve and the corresponding welding part is a curved surface, the end surface of the amplitude transformer transmitting part, which is contacted with the welding part, is a matched curved surface;
when the welding seam is a three-dimensional space intersecting line, the end surface of the amplitude transformer transmitting part, which is in contact with the welding part, is a curved surface matched with the regular curved surface;
when the device is applied to the regulation and control of the residual stress in the overlaying welding and ultra-wide welding seam welding area, the transmitting part of the amplitude transformer is vertically attached to the surface of a welding part.
Through the structure, the transmitting end of the amplitude transformer is tightly attached to the surface of the regulating member, so that ultrasonic vibration is transmitted to the regulating member to act on a welding line, and the specific regulating position and the number of the ultrasonic transducers are determined according to the size and the shape of the welding line.
The invention also provides a method for regulating and controlling the sound wave reduction and homogenization in the process of generating the welding residual stress, which comprises the following steps:
the sound wave reduction homogenization regulation and control device in the welding residual stress generation process is used for arranging the two rows of amplitude transformer transmitting parts corresponding to the two rows of through holes in a contact manner with the two sides of the welding seam of the welding part;
and the contact position is far away from the welding heat affected zone by 10-15mm distance and is used as a residual stress regulation position in the welding process;
when welding, the sound wave reduction homogenization regulation and control device in the process of generating the welding residual stress works to regulate and control the residual stress in the welding process. The ultrasonic transducer forms plate waves in the thick plate, wherein the ultrasonic equipment is always started in the welding process, continuous ultrasonic waves are continuously input into a welding part, the ultrasonic waves are radiated into a molten pool, and in the process from a weld toe melting state to a weld toe solidification process, the ultrasonic waves are utilized to reduce the grain size, uniformly distribute solute, reduce segregation and the like, reduce the welding residual stress and improve the performance of a welding joint.
In addition, the residual stress can be detected firstly during the regulation and control of the stress, the working mode of the residual stress regulation and control instrument is selected according to the detected residual stress, then the regulation and control are carried out, the residual stress is detected again after the regulation and control are finished, and the operation is repeated, so that the regulation and control of welding deformation are realized by regulating and controlling the welding residual stress, the performance of a welding joint is improved, and the firm welding of two welding parts is ensured.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. A sound wave reduction homogenization regulating and controlling device in a welding residual stress generating process is characterized by comprising:
the fixing tool is provided with two rows of through holes;
the ultrasonic transducers are provided with a body, and the lower end of the body is provided with a conical amplitude transformer transmitting part; the lower end of the transmitting part of the amplitude transformer is fixedly connected with a flange plate;
the transmitting part of the amplitude transformer of each ultrasonic transducer extends into the through hole of each fixed tool to be in contact with the welding part below the fixed tool, the flange plate and the fixed tool are fixed through bolts, and the two rows of through holes are arranged just opposite to two sides of the welding seam of the welding part;
and the driving device drives the ultrasonic transducer to work.
2. The apparatus of claim 1, wherein the drive means comprises:
the residual stress regulating and controlling instrument comprises an industrial personal computer, an analog-digital signal card and a multi-channel controller which are in signal connection in sequence;
the program-controlled power supplies are respectively in signal connection with the channels of the multi-channel controller;
and the adaptor is used for outputting the electric signals of the plurality of programmable power supplies to the corresponding plurality of ultrasonic transducers.
3. The apparatus as set forth in claim 1 wherein a sleeve is disposed between the horn emitting portion and the flange, the horn emitting portion being secured to the sleeve by bolts, the sleeve being fixedly attached to the flange.
4. A device according to claim 3, wherein the bolt securing the horn emitting portion to the sleeve is spring-loaded and/or spring-loaded
And a spring is sleeved on the bolt for fixing the flange plate and the fixing tool.
5. The apparatus of claim 1,
the welding seam is a curve, and when the corresponding welding part is a curved surface, the end surface of the amplitude transformer transmitting part contacted with the welding part is a matched curved surface.
6. The apparatus of claim 1,
when the welding seam is a three-dimensional space intersecting line, the end surface of the amplitude transformer transmitting part, which is in contact with the welding part, is a curved surface matched with the regular curved surface.
7. The apparatus of claim 1,
when the device is applied to the regulation and control of the residual stress in the surfacing welding and ultra-wide welding seam welding area, the transmitting part of the amplitude transformer is vertically attached to the surface of a welding part.
8. A method for regulating and controlling sound wave reduction and homogenization in a welding residual stress generation process is characterized by comprising the following steps:
the sound wave reduction homogenization regulation and control device in the welding residual stress generation process of any one of claims 1 to 7 is used, and two rows of amplitude transformer transmitting parts corresponding to two rows of through holes of the device are arranged in contact with two sides of a welding seam of a welding part;
and the contact position is far away from the welding heat affected zone by 10-15mm distance and is used as a residual stress regulation position in the welding process;
when welding, the sound wave reduction homogenization regulation and control device in the process of generating the welding residual stress works to regulate and control the residual stress in the welding process.
9. The method of claim 8, further comprising:
and detecting the residual stress before regulating and controlling the stress, regulating and controlling, and detecting the residual stress again after the regulation and control are finished.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010745783.1A CN111876585B (en) | 2020-07-29 | 2020-07-29 | Sound wave reduction homogenization regulation and control device and method in welding residual stress generation process |
| US17/364,071 US11919040B2 (en) | 2020-07-29 | 2021-06-30 | Control device and control method for reducing and homogenizing welding residual stress by acoustic wave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010745783.1A CN111876585B (en) | 2020-07-29 | 2020-07-29 | Sound wave reduction homogenization regulation and control device and method in welding residual stress generation process |
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| Publication Number | Publication Date |
|---|---|
| CN111876585A true CN111876585A (en) | 2020-11-03 |
| CN111876585B CN111876585B (en) | 2021-08-13 |
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| US (1) | US11919040B2 (en) |
| CN (1) | CN111876585B (en) |
Cited By (5)
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|---|---|---|---|---|
| CN112609067A (en) * | 2020-11-30 | 2021-04-06 | 北京理工大学 | In-situ low-stress welding method for large three-dimensional complex aluminum alloy component |
| CN112958966A (en) * | 2021-03-24 | 2021-06-15 | 西安理工大学 | Mechanical vibration grain refining device for weld joint structure in fusion welding process |
| CN114717408A (en) * | 2022-03-31 | 2022-07-08 | 北京理工大学 | Device and method for regulating and controlling residual stress of large crankshaft machining by high-energy sound beam |
| CN115058585A (en) * | 2022-06-28 | 2022-09-16 | 北京理工大学 | Ultrasonic cavitation impact reduction and homogenization method for residual stress of complex curved surface component |
| CN115323161A (en) * | 2022-08-09 | 2022-11-11 | 北京理工大学 | Device for reducing residual stress and deformation of revolving body |
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|---|---|
| CN111876585B (en) | 2021-08-13 |
| US11919040B2 (en) | 2024-03-05 |
| US20220032341A1 (en) | 2022-02-03 |
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